who are good in physics here??? pls help me

July 9, 2007 6:03am CST
Problem solving: The equation for calculating the relativistic mass of a moving object is m=Me over square root of 1-(Ve squared/C sqaured) where m is the relativistic mass of the object, Me is the rest mass of the electron, Ve is the Velocity of the electron, and c is the speed of the light. Calculate the relativistic mass to rest mass ration, for an electron which has a velocity with respect to the observer that is 20 % of the velocity of the light...thanks!
1 response
@hoVla5 (5)
• Croatia (Hrvatska)
11 Jul 07
The equation you wrote is all you need to solve this. You want to calculate: m/Me=1/sqrt(1-(Ve/C)^2) You said that velocity of object is 20% of velocity of light, so Ve/C=0.2 = (Ve/C)^2=0.04, and solution is: m/Me=1/sqrt(0.96) sqrt means square root. I hope this helps. If you have more questions, just ask! :-)